Adding custom CSS and JS to Shopify

I am working on getting vertical tabs for a page on Shopify, using the 'Atlantic' theme.
As this theme does not have vertical tabs by default, I have used the external JS and CSS "jquery-jvert-tabs".

My question is, if I upload the JS and CSS files as assets, how do I link them to the page on which I want to use these and how to make use of these on the page after that, if I have certain style elements available there too?